/*
 * @Description: 
 * @version: 
 * @Author: cy
 * @Date: 2021-12-23 09:37:44
 * @LastEditors: cy
 * @LastEditTime: 2022-03-24 16:01:57
 */
const a = { val: 'a' };
const b = { val: 'b' };
const c = { val: 'c' };
const d = { val: 'd' };
a.next = b;
b.next = c;
c.next = d;
// 遍历链表
let p = a
while(p) {
    console.log(p.val);
    p = p.next;
}
// 插入
const e = { val: 'e' };
c.next = e;
e.next = d;

// 删除e
c.next = d;
